▸ Specimen Drawer

Materials & Substances — Lesson 10

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Specimen

adhesives

ədˈhiːsɪvz

A substance that unites or bonds surfaces together — we need better adhesives for outdoor projects.

This glue is one of the strongest adhesives available.

Specimen

adobe

əˈdoʊbi

The clay from which adobe bricks are made — we visited an adobe village during our trip to New Mexico.

Many traditional houses in the southwestern United States are built of adobe.

Specimen

air

ɛr

The invisible mixture of gases (mainly nitrogen and oxygen) that surrounds the — I need some fresh air.

I need some fresh air.

Specimen

alkali

ˈælkəlaɪ

A substance with a pH greater than 7 that can neutralize acids — sodium hydroxide is a strong alkali used in soap making.

Sodium hydroxide is a strong alkali used in soap making.

Specimen

alkaloid

ˈælkəlɔɪd

Natural bases containing nitrogen found in plants — caffeine is an alkaloid found in coffee beans.

Caffeine is an alkaloid found in coffee beans.

Specimen

alkaloids

ˈælkəlɔɪdz

Natural bases containing nitrogen found in plants — caffeine and nicotine are both well-known alkaloids.

Caffeine and nicotine are both well-known alkaloids.

Specimen

alligator

ˈæləɡeɪtər

Leather made from alligator's hide — we saw an alligator at the zoo.

The alligator basked in the sun.

Specimen

alligators

ˈælɪɡeɪtərz

Leather made from alligator's hide — alligators are common in Florida.

The alligators were basking in the sun near the swamp.

Specimen

alloy

ˈælɔɪ

A substance made by combining two or more elements, at least one of which is a — this ring is made of a gold alloy.

Steel is an alloy made from iron and carbon.

Specimen

alloys

ˈælɔɪz

A substance made by combining two or more metals, or a metal with another — bronze was one of the first alloys used by humans.

Steel is an alloy of iron and carbon.

Specimen

amalgam

əˈmælɡəm

A mixture or combination of different elements — this dish is an amalgam of French and Asian cuisines.

The committee's report is an amalgam of different perspectives.

Specimen

amino

əˈmiːnoʊ

The radical -NH2 — amino acids are the building blocks of proteins.

Amino acids are the building blocks of proteins.

▸ Catalogue Progress 0 / 12 specimens catalogued

Mark each specimen as learned to complete this drawer.

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